Refactor Exception System

[SteinRobert]

What is the new feature about?

Currently Gefyra raises several kinds of RuntimeError when something goes wrong.
It's a kind of generic approach we handle the RuntimeError somewhere in the top of the call stack, which then simply prints an error message.
This makes it pretty difficult to handle errors in our Docker Desktop extension, as well as in future other extensions.

I'd suggest, that we create something like this:

class GefyraException(RuntimeError):
    hint: str = ''
    code: int = None

So that we could output something like this:

Error: Pod not found.
Hint: Please check your-pod-name-123cx for typos.
Code: 100

Also gefyra-ext could then do something like this:

{"error": true, "msg": "Pod not found.", "hint": "Please check your-pod-name-123cx for typos.", "code": 100}

Why would such a feature be important to you?

Improve UX of Gefyra's CLI as well as other projects that build on top.

Anything else we need to know?

No response